@inproceedings{zhou19wmt,
    title = {Improving Robustness of Neural Machine Translation with Multi-task Learning},
    author = {Shuyan Zhou and Xiangkai Zeng and Yingqi Zhou and Antonios Anastasopoulos and Graham Neubig},
    booktitle = {4th Conference on Machine Translation (WMT)},
    address = {Florence, Italy},
    month = {August},
    url = {http://www.statmt.org/wmt19/pdf/WMT0068.pdf},
    year = {2019}
}